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设置页使用指导 · App Inventor 2 中文网
...配置的默认值；再次进入屏幕核对保存状态。
when 按钮_恢复默认.Click() {
设置页1.ResetDefaults()
标签1.Text = join("当前主题：", 设置页1.GetValue("theme", "自动"))
}
when 设置页1.ErrorOccurred(操作, 消息) {
标签1.Text = join(操作, "：", 消息...
Calling JMX MBean method from a shell script
Are there any libraries that would allow me to call a JMX MBean method from a shell script. We expose some operations/admin commands through JMX, and we could have our admins use JConsole, or VisualVM, but some tasks are better left to automation. In that automation we'd like to be able to call a JM...
How to URL encode a string in Ruby
...\x78\x9a\xbc\xde\xf1\x23\x45\x67\x89\xab\xcd\xef\x12\x34\x56\x78\x9a".force_encoding('ASCII-8BIT')
puts CGI.escape str
=> "%124Vx%9A%BC%DE%F1%23Eg%89%AB%CD%EF%124Vx%9A"
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improve this an...
ToList()— does it create a new list?
...tatic void RunChangeList()
{
var objs = Enumerable.Range(0, 10).Select(_ => new MyObject() { SimpleInt = 0 });
var whatInt = ChangeToList(objs); // whatInt gets 0
}
public static int ChangeToList(IEnumerable<MyObject> objects)
{
var objectList = objects.ToList();
objectLi...
Unable to load config info from /usr/local/ssl/openssl.cnf on Windows
...penSSL I was required to create a new environment variable:
Name: OPENSSL_CONF
Value: C:\Program Files\OpenSSL\openssl.cnf
In powershell:
$env:OPENSSL_CONF = "${env:ProgramFiles}\OpenSSL\openssl.cnf"
This value differs from previous installation versions (as seen in a previous edit of this po...
ValueError: invalid literal for int() with base 10: ''
...ame)
for line in h:
if line.strip():
[int(next(h).strip()) for _ in range(4)] # list of integers
This way it processes 5 lines at the time. Use h.next() instead of next(h) prior to Python 2.6.
The reason you had ValueError is because int cannot convert an empty string to the integ...
Switching the order of block elements with CSS [duplicate]
...new implementation: developer.mozilla.org/en-US/docs/Web/Guide/CSS/Flexible_boxes
– Daniel Ristic
Sep 11 '13 at 16:13
...
Displaying files (e.g. images) stored in Google Drive on a website
...
Here's the simple view link:
https://drive.google.com/uc?id=FILE_ID
e.g. https://drive.google.com/uc?id=0B9o1MNFt5ld1N3k1cm9tVnZxQjg
You can do the same for other file types, e.g. MP3, PDF, etc.
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...
What is the maximum length of a URL in different browsers?
...00 characters
If you keep URLs under 2000 characters, they'll work in virtually any combination of client and server software.
If you are targeting particular browsers, see below for more details specific limits.
Longer answer - first, the standards...
RFC 2616 (Hypertext Transfer Protocol HTTP/1.1)...
How do I change the default port (9000) that Play uses when I execute the “run” command?
... file I created a file in the distributable root directory called: {PROJECT_NAME}_config.txt and added:
-Dhttp.port=8080
Where {PROJECT_NAME} should be replaced with the name of your project. Then started the {PROJECT_NAME}.bat script as usual in the bin\ directory.
...